Plain game description shows gravity is the main thing. i noticed stacking tetris-like shapes is the core mechanic to reach a portal.
Step one is clicking to start, then you move, rotate, and stack blocks to reach a portal.
The controls are simple: you press buttons to jump and place things. You must use a specific mechanic to reach a portal, which is the goal.
Most stacking is harder than it looks, so plan moves carefully. You must use the mechanics to reach a portal.
Q1 Controls: A: Press buttons to jump and place things.
Q2 Objective: A: Reach a portal by stacking shapes.
Q3 Features: A: Not stated.
Q4 Main Mechanic: A: Gravity and stacking tetris-like shapes.